The bob of a pendulum of length l $=0\mathrm{.}8$ m is released at an angle $($theta$)0=600$ with an initial speed of v$0=2$ m$/$s$.$ We are interested in the highest point the bob will reach. $($a$)$ Draw a sketch including the trajectory of the bob and collect the available information, assigning names to all variables. $($b$)$ Compared to the initial height, you expect the highest point the bob will reach to be $[1]$ higher $[2]$ the same height $[3]$ lower $[4]$ The answer depends on the direction of the initial velocity of the bob. $($c$)$ Which principle can you use to calculate the highest point the bob will reach? $($d$)$ Calculate the highest point the bob will reach. Please use g $=10$ m$/$s$2$ and make sure your units work out. Note: cos$(60^0)=0\mathrm{.}5$